Hi Melony, thanks very much for viewing my video AND for your very sensible advice on hydrofluoric acid (HF). I am attaching the Safety Data Sheet for the CRL water spot remover and you will see that the HF content is less than 2%: webcache.crlaurence.com.mx/DataSheets/MSDS/PDF_MX/C2020.pdf So, whilst you are quite correct to be cautious about dangerous chemicals, the risk of damage from HF is rather low unless you drink it. Sorry, I may have been misleading in my commentary. However, we highly recommend using gloves and protective goggles and also operating in a well-ventilated environment. Many thanks again for your cautionary note!!

Hi Theresa, I don't suppose you are the former Conservative Prime Minister (just retired from the House of Commons)? If so - congratulations on having the sense to emigrate to California!. On the mug - it's OK to use occasionally if you insist BUT much better to keep it as a displayed souvenir. With heat and washing the crack will widen and extend. Thanks for watching my video!

Hi Gary, that's a great question! The real answer is that you should never place a repaired coffee mug in the microwave (metal handle/armature or not). This is because the glue and any epoxy filler or paint is NOT FIRED ON. So the repaired mug becomes a display piece - not to be used under any circumstances (unless you want to fix it again). PS Thanks for viewing the vid!

Hi Mr. Faded, thanks very much for viewing my video. As I mentioned in the commentary, vinegar is sometimes effective because when calcium carbonate (CaCO₃) comes in contact with vinegar (which contains acetic acid, CH₃COOH), a chemical reaction occurs. Here’s the chemical equation for this reaction: CaCO₃ (s) + 2CH₃COOH (l) → Ca(CH₃COO)₂ (s) + H₂O (l) + CO₂ (g) In this reaction: Calcium carbonate reacts with acetic acid to form calcium acetate (Ca(CH₃COO)₂), water, and carbon dioxide gas (CO₂). In practice, however, most users report that household vinegar is too weak to remove serious deposits. If you like the idea of using vinegar we recommend the full, industrial-strength variety - amzn.to/4e8hbcX

@@artistryinglass943 Yeah, I have been trying with household vinegar and it's really difficult (trying to clean up old aquarium glasses) the Hydrofluoric acid can be lethal in high concentrations. Is the CRL water spot remover safe to use? Supposing that some splashing could occur? Thanks for the video.

@@eduardomurphyperez717 For best results turn the aquarium on its side so that the water-marked surface is horizontal. Then pour a little CRL on the glass and let it "pond" up for a while. You will see the scale start to release. Then flip the aquarium to do the other side. CRL does not work by scrubbing - just by dissolving so you just need to allow the CRL liquid to sit on the stained surface long enough to work. Rinse with plenty of clear water and try again if some stains remain., Be sure to use gloves and goggles. John

@@johnwakefield5633 Thanks for the tips, great info on the video, btw.

Hi Peter, Good question - this is a new one for me and the the heat may have "baked-in" or otherwise modified the stains making them harder to remove than typical hard water deposits. If the stains are really CaCO₃, then the CRL should work - but experiment on a small area in case of unexpected results! Otherwise, carefully grinding and polishing with cerium should also work. Good Luck!

Hi Barry, bird poop is acid (PH around 3.00)and can permanently etch glass. CRL spot remover will probably not help. The only solution is abrasive polishing using foam or felt pads and cerium oxide. amzn.to/3JRwvN7 . Test on a small area first.

Yes you can but I cannot guaranty to diagnose for sure from a photo. Send to [email protected] and I will take a look.

Thanks Tessa!🙂

Hi Whitebird, sorry you can't find a supplier in Portland. Any competent glass company is capable of doing backsplashes - the installation is almost identical to installing wall mirrors. Your best bet is to call the larger residential glass companies in your area - like canyon.glass/ www.bridgecityglaziers.com/ mthoodglass.com/residential/ Avoid window repair/window board-up or auto glass companies. To clarify, send them a link to my video, Good luck, John

Hi Bruce, I have never tried but I suspect that it would dissolve the hard water deposits - just not sure if it would etch or damage the plastic. Try at your own risk!

@johnwakefield5633 thanks for the "HEADS UP"

Hi Michael, thanks for your generous testimonial! We have always tried to persuade our Arizona customers NOT to request a saguaro and a coyote howling at the moon when there are much better design options available. (If you could subscribe I would appreciate it!) John

Hi Barry, thanks for watching my video. Some less-than-honest repairers may claim that repaired mugs can be used - either in the microwave or otherwise BUT no glue will withstand repeated or even occasional use for your favorite cup of coffee or tea. We tell all our customers that a mug with a fixed handle becomes a DISPLAY piece only.

@@johnwakefield5633 Thank you so much for your reply. That's what I was concerned about. You've saved me a lot of time and another mess on the floor.

Hi Lina, thanks for the feedback. What brand of toothpaste did you use? And did you use a soft-bristle brush?

@@johnwakefield5633 colgate total whitening. I just used my fingers. Rubbed it on the problem area. Until it dried and then rinse while using my fingers. I decided to try toothpaste because u mentioned it was not very abrasive and i didnt want to scratch my coffee mug so i decided to try it. :) worked great!👍🏼

Hi Bruce, thanks for watching my video. Yes, reusing will work for a while but you may start to have an issue with "dregs" - white calcium carbonate residue from the bottom of the glasses. I think the optimum recycling method is to use 2 bottles - one for the used and one for the fresh. Then you can evaluate the effectiveness of the used liquid as it gradually loses strength,

That's the exact problem I'm having with my glassware. I wish to get some help here..

@@jscraftynook4277 Since my original comment, I discovered something > white vinegar! fill a sink with hot soapy water and add, say, a half cup of white vin. Its AMAZING! Cuts all the filmy stuff, and any oils of marks. Eureka!!!

Hi Joao, thanks for watching my video and for the excellent question. The short answer is that it is not a good idea to use strong solvents or to grind and polish delicate lenses unless you are certain of what you are doing. Many eyeglass lenses are made of polycarbonate (plastic) and many lenses of all types have special surface coatings that will be removed by abrasive polishing. The only exception might be a large, antique glass lens, used for decorative purposes that might have water stains.

@@artistryinglass943 ok thanks, you are very helpfull

Hi LifeHack, thanks for watching our video. You ask a good question. I have a great deal of concern for pollution, climate change, and the future of our planet but the amount of CRL we use on a typical glass (maybe 6 oz) is not dangerous. We decant the used solvent back into a spare bottle for reuse (it keeps its strength through multiple uses). When it has lost its power we carefully dispose of the residue by diluting in tap water and allowing it to drain away. John

Hi Grecia, thanks for watching my video. If it's worth $15.00 to you, try this black epoxy from Bigbong - amzn.to/47cOIOs . Be sure to clean the broken surface before applying the glue. After it sets up, sand and polish. Or, you can use any 2-part epoxy you have available and tint it black with lead scraped off from a lead pencil (not so good). Please subscribe to my channel - best wishes John

Thanks Querty - every little helps!

@@johnwakefield5633 it does. I hope more follow suit!

Hi Mr Unknown, sorry but this just works on glass - definitely not on fiberglass (but I have not heard of glasses made of fiber), thanks for watching, John

Hi Isa, I like this: amzn.to/3u4BeX3 but any UV-activated glue will work, Thanks for looking at my vid, John

Sorry you feel that way young Buddha. Our intention is to help. We do not accept any requests to clean cloudy glasses except from a few very loyal customers in Tucson, Arizona. Check our Google testimonials if you do not believe we are nice people - artglass.website/

Hi Latresee, thanks very much for watching my vid - but, sorry we only do repairs for Tucson customers.

Thanks for the feedback Janny! Did you have hard water deposits (calcium carbonate) or do you think the cloudiness was caused by etching? (normally from dishwasher chemicals).

@@artistryinglass943 QUESTION, JOHN ... Have YOU any idea WHY we continually have to REVISIT this issue with the DW dish detergent put out by Cascade & Finish?? (I only buy the "name brands" thinking, surely!!, THEY have a handle on the chemistry needed to keep this from happening!!) For a very long time it seemed that they had the situation solved. However, with Cascade's recent (1/'23) formula change, I N O W have a badly "etched" water goblet (interestingly, after being run through the dw with Marana/Tucson water!). Thank you for whatever information you share.

Great! I'll try that - I have bar keepers friend and can use that...thx. Mine just have this filmy coating from sitting in a cupboard, rather like a light layer of dust/air - who knows? its annoying, as I love pretty glasses but they must be clean to enjoy!

Hi Brenda, it looks like you have "sick"or etched glass. This is a cloudiness caused by chemical reaction of the surface of the glass (often with harsh detergents). Try polishing with cerium oxide as I explain in the second part of my video. Note that the cloudiness can be on the outside as well as the inside of the glasses.

Hello Bee, yes, cerium oxide on a felt pad will probably work but try CRL water spot remover if you canopy has HARD WATER STAINS.

so why are you here watching this vid

Thanks for your feedback Mr. Stereo! Please not that Oxyclean will work on some organic stains but is absolutely no use for hard water stains.

@@MikeZak101 I for one am glad that Dreamer DID watch -- AND COMMENT! It never hurts to have more than one trick in your bag.

Thanks for the feedback - CRL water spot remover is very effective but very strong - make sure to use gloves. Also, you can reuse by pouring back into the bottle ( up to a point). John

Good to know re: the reuse tip!@@artistryinglass943

Hi Anthony, yes, the cerium oxide on felt pads will polish out haziness but there are many windshield polishing kits that come with bigger pads - like this one -amzn.to/3LbS7py - thanks for the question.

@@artistryinglass943 thank you. Will give it a go.

Thanks - pleased it worked!

That's correct Hitch - I do not recommend Scotch pads on this video. Thanks for the reminder!

Oh, come on, be more specific

Sorry to hear that Mark - let me know what went wrong and I will try to assist.

I followed the instructions, and purchased the items recommended, as I understand them. My glassware is more cloudy than before.

@@marksavage7813 thx!

What size compound is used?